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Data Access
FTPS from SPDF (not with most browsers)
HTTPS from SPDF
CDAWeb
WebService:
CDAWeb Programmatic Data Access
HAPI: CDAWeb HAPI Server
IMAGE RPI Monthly Electron Density Values
var authors='Reinisch, Bodo, W.; Galkin, Ivan, A.';
document.write(authors);
(2023).
IMAGE RPI Monthly Electron Density Values.
[Data set].
Space Physics Data Facility.
https://doi.org/10.48322/awms-1e38. Accessed on document.write(currentDateStr);.
Note: Proper references, including
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or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication.
ResourceID
spase://NASA/NumericalData/IMAGE/RPI/PT1M
Description
The electron density values listed in this file are derived from the IMAGE Radio Plasma Imager (B.W. Reinisch, PI) data using an automatic fitting program written by Phillip Webb with manual correction. The electron number densities were produced using an automated procedure (with manual correction when necessary) which attempted to self-consistently fit an enhancement in the IMAGE RPI Dynamic Spectra to either 1) the Upper Hybrid Resonance band, 2) the Z-mode or 3) the continuum edge. The automatic algorithm works by rules determined by comparison of the active and passive RPI data [Benson et al., GRL, vol. 31, L20803, doi:10.1029/2004GL020847, 2004]. The manual data points are not from frequencies chosen freely by a human. Rather the human specifies that the computer should search for a peak or continuum edge in a certain frequency region. Thus even the manual points are determined, in part, by the automatic algorithms. Of course that does not guarantee that the data points are right, but it does eliminate some human bias.
Metadata Rights
CC0-1.0:
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license.
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Details
Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/IMAGE/RPI/PT1M
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
IMAGE RPI Monthly Electron Density Values
DOI
https://doi.org/10.48322/awms-1e38
ReleaseDate
2025-12-04 13:29:33Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2023-07-30 12:34:56.789
Note
Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727
RevisionEvent
ReleaseDate
2025-10-02 15:12:00Z
Note
Updated PublishedBy name to match ROR Registry. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:29:33Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
Description
The electron density values listed in this file are derived from the IMAGE Radio Plasma Imager (B.W. Reinisch, PI) data using an automatic fitting program written by Phillip Webb with manual correction. The electron number densities were produced using an automated procedure (with manual correction when necessary) which attempted to self-consistently fit an enhancement in the IMAGE RPI Dynamic Spectra to either 1) the Upper Hybrid Resonance band, 2) the Z-mode or 3) the continuum edge. The automatic algorithm works by rules determined by comparison of the active and passive RPI data [Benson et al., GRL, vol. 31, L20803, doi:10.1029/2004GL020847, 2004]. The manual data points are not from frequencies chosen freely by a human. Rather the human specifies that the computer should search for a peak or continuum edge in a certain frequency region. Thus even the manual points are determined, in part, by the automatic algorithms. Of course that does not guarantee that the data points are right, but it does eliminate some human bias.
Acknowledgement
Please acknowledge the instrument PI and NASA's Space Physics Data Facility.
PublicationInfo
Authors
Reinisch, Bodo, W.; Galkin, Ivan, A.
PublicationDate
2023-01-01 00:00:00
PublishedBy
Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Bodo.W.Reinisch
2.
DataProducerTechnicalContact
spase://SMWG/Person/Ivan.A.Galkin
3.
MetadataContact
spase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
IMAGE RPI Instrument Page
URL
https://image.gsfc.nasa.gov/rpi/
Description
IMAGE RPI Instrument page maintained by NASA GSFC with RPI facts, description, team, data, documents, discoveries, and related links sections
Language
en
InformationURL
Name
IMAGE RPI Instrument Page at UML
URL
https://ulcar.uml.edu/rpi.html
Description
IMAGE RPI Instrument page maintained by University of Massachusetts Lowell with RPI description, team, software downloads, software user guides, access to CORPRAL automated prospecting results, mission planning tools and commanding guide, data model descriptions for Level 0 and 1, sonification files of 2003 Halloween storm, and useful links
Language
en
InformationURL
Name
IMAGE RPI Anywhere Download Page
URL
https://ulcar.uml.edu/Installation/BinBrowser/install.htm
Description
RPIAnywhere software download page, including BinBrowser (RPI data analysis tool) and EdRPI (RPI mission planning tool)
Language
en
PriorIDs
spase://VSPO/NumericalData/P_IMAGE_HDR_RPI_ELECTRON_DENSITY_1M
spase://VSPO/NumericalData/IMAGE/RPI/PT1M
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/image/rpi/rpi_electron_density/
Description
FTP access to IM_ELECTRON_DENSITY_RPI file
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/image/rpi/rpi_electron_density/
Description
In CDF via HTTP from CDAWeb
Format
CDF
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=IM_ELECTRON_DENSITY_RPI&index=sp_phys
ProductKey
IM_ELECTRON_DENSITY_RPI
Description
Plots, lists and files from CDAWeb
Format
Text
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/image/rpi/rpi_Ne_fp_along_orbit/rpi_electron_density_CDF/$Y
AccessFilenameTemplate
im_electron_density_rpi_$Y$m$d_$v.cdf
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb Programmatic Data Access
URL
https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/IM_ELECTRON_DENSITY_RPI/clientLibraryExample/
Style
WebService
ProductKey
IM_ELECTRON_DENSITY_RPI
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
IM_ELECTRON_DENSITY_RPI
Description
Web Service to this product using the HAPI interface.
Format
CSV
InstrumentIDs
spase://SMWG/Instrument/IMAGE/RPI
MeasurementType
Waves.Active
TemporalDescription
TimeSpan
StartDate
2001-01-01 00:00:00.000Z
StopDate
2005-12-01 00:00:00.000Z
Cadence
PT1M
ObservedRegion
Heliosphere.Inner
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.NearSurface.AuroralRegion
ObservedRegion
Earth.NearSurface.PolarCap